[Mesa-stable] some patches for 18.2.x

[Timo Aaltonen]

	Hi,

I think these deserve to be added to the 18.2.x branch:

44f1dcf9b3fd902fbb36a939b45469ed9f9264e6
886a048febcea2cd6e0e2cdaa2522bbf2b0f48ab
e8c42ed4abaca798ab218ede97eaac30fbb8bd8e
24db1c7fcc43fb433af6bfe80af934c3775387f1
5bd836968172151d633675a5f9b4f8b646971a31

thanks!

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t